Organic Farm Concentration

Each cell in these “treemaps” represents a single farm, and its size is proportional to the sales or acreage category to which it belongs. Caution should be used in interpreting these graphics because the top categories are truncated (i.e. a farm with $10 million in sales is shown as the same size as a farm with $1 million in sales), and commodities vary substantially in market value and acreage requirements. Continue reading Organic Farm Concentration

Organic Distribution & Retail Structure

The chart above is based on data from the Organic Trade Association. Sales of organic food have increased approximately 20% annually since 1990. The Organic Agriculture Centre notes similar trends in Canada and conservatively estimates annual sales of at least C$1 billion in 2006. Mass market channels accounted for 46% of all organic foods sold in the US in 2005. An increasing number of supermarkets, … Continue reading Organic Distribution & Retail Structure

Retail Food Access in Lansing, Michigan

This image shows maps of pedestrian access to six different produce items in Lansing, Michigan. It is from the following article: Goldsberry, Kirk, Chris S. Duvall, Philip H. Howard & Joshua E. Stevens. 2010. Visualizing Nutritional Terrain: A Geospatial Analysis of Pedestrian Produce Accessibility in Lansing, Michigan, USA. Geocarto International, 25(6), 485-499. Continue reading Retail Food Access in Lansing, Michigan